Methanol Ligands Research Articles

Bis[(2-aminophenyl)methanol-κ2N,O]bis(nitrato-κO)zinc(II)

In the title compound, [Zn(NO3)2(C7H9NO)2], the ZnII atom, lying on a twofold rotation axis, is six-coordinated in a distorted octa­hedral geometry by two N atoms and two O atoms from two (2-amino­phen­yl)methanol ligands and two O atoms from two monodentate nitrate anions. Inter­molecular N—H⋯O, O—H⋯O and C—H⋯O hydrogen bonds stabilize the crystal structure.

(Methanol-κO)bis{2-methoxy-6-[(4-methylphenyl)iminiomethyl]phenolato-κ2O,O′}tris(nitrato-κ2O,O′)cerium(III)

The asymmetric unit of title compound, [Ce(NO3)3(C15H15NO2)2(CH3OH)], consists of two Schiff base 2-meth­oxy-6-[(4-methyl­phen­yl)iminiometh­yl]phenolate (HL) ligands, three nitrate anions and a methanol ligand. The CeIII ion is 11-coordinated: three nitrate radical anions coordinate to the CeIII ion through O atoms, two HL ligands chelate the CeIII ion through the O atoms of the phenolate and meth­oxy groups, and one methanol mol­ecule coordinates to CeIII ion through its O atom. The O atom of one nitrate anion is disordered over two sites of equal occupancy. The protonated imine N atoms are involved in intra­molecular hydrogen bonds with the phenoxide groups. C—H⋯O inter­actions are also observed.

Aqua{6,6′-dimethoxy-2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}methanolmanganese(III)) perchlorate hemihydrate

The asymmetric unit of the title compound, [Mn(C18H18N2O4)(CH3OH)(H2O)]ClO4·0.5H2O, contains two complex cations and two perchlorate anions, one of which is disordered over two positions in a 0.767 (8):0.233 (8) ratio. The MnIII atoms are in distorted octa­hedral environments. In addition to the equatorial tetra­dentate salicylaldimine ligand, each Mn is axially coordinated by both a methanol and a water mol­ecule. The complex is a dimer held together by multiple strong and weak hydrogen-bonding inter­actions between the coordinated water mol­ecule on one monomer with all the phenolic and meth­oxy O atoms on the other monomer. In addition, the two perchlorate anions are linked by hydrogen bonds to the two methanol mol­ecules coordinated to each Mn center. The Mn—O phenolic bond distances range from 1.868 (2) to 1.882 (2) Å while the Mn—N distances range from 1.978 (2) to 1.981 (2) Å. Mn—O distances for the axial water and methanol ligands are longer at 2.226 (2)/2.257 (2) and 2.313 (2)/2.324 (2) Å, reflecting the usual Jahn–Teller distortion as found in MnIII complexes.

SYNTHESIS AND CHARACTERIZATION OF TRIAQUATRISULFISOKSAZOL COBALT(II)SULPHATE.nHYDRATE COMPLEX

Complex of cobalt(II) with sulfisoxazole (slfs) has been synthesized in 1 : 4 mole ratio of metal to ligands in methanol, the complex formula is [Co(slfs)3(H2O)3]SO4.nH2O. The electric conductivity of the complex in methanol correspond to 1:1 electrolyte. The thermal analysis indicates that complex contain some hydrates. Magnetic Susceptibility measurements show that the complex is paramagnetic with µeff = 4,60(9) BM. Infra red spectra indicates that the primary N-H group coordinated to the center ion, it is signed by a shift of primary N-H group absorption. UV-Vis spectrum appears one peak at λ= 515,5 nm (19.342 cm-1) due to transition peak of 4T1g (F) → 4T2g (P) (ν3) overlay to transition peak of 4T1g(F) → 4A2g(F) (ν2). The value of 10 Dq (Δo) that corresponds to transition 4T1g → 4T2g (n1) is 95,29 kJ.mol-1. Cyclic voltammograms have revealed quasi reversible. The complex probably is octahedral. Keywords: cobalt(II), sulfisoxazole, complex, paramagnetic, octahedral

A tetranuclear cobalt(III) cluster with 2-(hydroxymethyl)pyridine ligands

In the title compound, tetra­kis[μ3-(2-pyrid­yl)methano­lato]tetra­kis[bromido(methanol)cobalt(III)] tetra­bromide 2-(hydroxy­meth­yl)pyridine tetra­solvate dihydrate, [Co4Br4(C6H6NO)4(CH3OH)4]Br4·4C6H7NO4·2H2O, the cation comprises a [Co4O4] cubane-type core ( symmetry). The four CoIII ions and bridging O atoms from four (2-pyrid­yl)methano­late anions are located at alternating vertices of the cube, with bromide ions and methanol ligands on the exterior of the core, completing a distorted octa­hedral geometry. The structure is stablized by inter­molecular O—H⋯Br and O—H⋯O inter­actions.

An Oxide‐Centered Trinuclear Manganese(III) Compound with a Bulky Phenol‐Pyrazolate Ligand

AbstractA new oxide‐centered trinuclear manganese(III) compound with the formula [Mn3(μ3‐O)(naphpz)3(O2CMe)(MeOH)2]n (1) {H2naphpz = 2‐[1H‐pyrazol‐5(3)‐yl]naphthalen‐1‐ol} has been synthesized and characterized. Three bulky doubly deprotonated phenol‐pyrazole ligands are coordinated to the three manganese(III) ions with a μ3‐oxide bridge in the same plane. Methanol and acetate ligands are at the apical positions of the manganese(III) ions. The trinuclear units are bridged by acetate ligands in the anti‐anti mode, leading to the formation of 1‐D chains. Temperature‐dependent magnetic susceptibility studies indicate the presence of overall antiferromagnetic interactions with magnetic exchange constants of J1 ≈ –1.9 and J2 ≈ –5.5 cm–1 and g = 1.91. Weak antiferromagnetic interactions (zJ′ = –0.37 cm–1) between the trinuclear units in the 1‐D chain (and between the chains) in compound 1 are present.

Host–guest chemistry of a chiral Schiff base copper(ii) complex: can chiral information be transferred to the guest cation?

The in situ formation of [Cu{(R,R)-1}] through the reaction of copper(II) acetate with 1,6-bis(3-ethoxy-2-hydroxyphenyl)-(3R,4R)-(−)-cyclohexane-1,2-diyl-2,5-diazahexa-1,5-diene, (R,R)-H21, followed by reaction with NH4PF6, NaClO4, KBr, KSCN, CsCl, Ca(NO3)2·4H2O or BaI2 leads to the isolation of crystalline products, which illustrate the ability of the vacant O4-donor cavity in [Cu{(R,R)-1}] to host ammonium or s-block metal cations in a variety of manners. The smallest cations (Na+ and Ca2+) are bound in the plane of the O4-donor set, with axial sites being occupied by methanol or coordinating anions. The bridging mode adopted by [NO3]− anions results in the assembly of a chiral, one-dimensional coordination polymer. Larger cations ([NH4]+, K+, Cs+, Ba2+) are sited above the plane of the O4-donor cavity and give rise to either sandwich-type complexes (both transoid and cisoid) or, in the case of Ba2+, to a 1:2 complex in which the [Cu{(R,R)-1}] ligands tend towards a mutually orthogonal arrangement. The 9-coordinate Ba2+ coordination environment is completed by a methanol ligand. In all but the latter complex, a common feature of the molecular packing is the ability of the O4-domain to host a cyclohexane-1,2-diyl unit through C–H⋯O non-classical hydrogen bonds. The O4-donor set appears to be too distant from the chiral auxiliary for its stereochemical information to be recognized by the cation hosted within the O4-cavity.

Electrocatalytic oxidation of methanol by the [Ru3O(OAc)6(py)2(CH3OH)]3+cluster: improving the metal-ligand electron transfer by accessing the higher oxidation states of a multicentered system

The [Ru3O(Ac)6(py)2(CH3OH)]+ cluster provides an effective electrocatalytic species for the oxidation of methanol under mild conditions. This complex exhibits characteristic electrochemical waves at -1.02, 0.15 and 1.18 V, associated with the Ru3III,II,II/Ru3III,III,II/Ru 3III,III,III /Ru3IV,III,III successive redox couples, respectively. Above 1.7 V, formation of two RuIV centers enhances the 2-electron oxidation of the methanol ligand yielding formaldehyde, in agreement with the theoretical evolution of the HOMO levels as a function of the oxidation states. This work illustrates an important strategy to improve the efficiency of the oxidation catalysis, by using a multicentered redox catalyst and accessing its multiple higher oxidation states.

Methanoldinitrato[N-(2-pyridylmethylene)aniline]copper(II)

The Cu atom in the title compound, [Cu(NO3)2(C12H10N2)(CH3OH)], adopts a square-pyramidal geometry, being ligated by two N atoms of the bidentate N-(2-pyridylmethyl­ene)­aniline (ppma) ligand, two O atoms of NO3 ligands and one O atom of a methanol molecule, which occupies the apical position. The phenyl ring on the ppma ligand is twisted out of the pyridine plane, forming a dihedral angle of 42.9 (1)°. In the crystal, inter­molecular O—H⋯O hydrogen bonds between methanol and NO3 ligands form an extensive one-dimensional network extending parallel to [100].

A Highly Active Catalyst for Huisgen 1,3-Dipolar Cycloadditions Based on the Tris(triazolyl)methanol−Cu(I) Structure

A new tris(1-benzyl-1H-1,2,3-triazol-4-yl)methanol ligand 3 has been prepared by a triple Cu(I)-catalyzed alkyne-azide 1,3-dipolar cycloaddition (CuAAC). Ligand 3 forms a stable complex with CuCl, which catalyzes the Huisgen 1,3-dipolar cycloaddition on water or under neat conditions. Low catalyst loadings, short reaction times at room temperature, and compatibility with free amino groups make 3.CuCl an outstanding catalyst for CuAAC.

Ein neuartiger Zugang zu reduzierten Polyoxomolybdaten mit komplexen Gegenionen – Synthese und Struktur von [Mn(CH3OH)6][Mo8O16(OCH3)8(C2O4)

AbstractThe tetranuclear compound [Mo2(O2C‐tBu)3]2(μ‐C2O4) (1) that is prepared from [Mo2(O2C‐tBu)3]4 and oxalic acid, was reacted with MnI2·2THF to form the polyoxomolybdate compound [Mn(CH3OH)6] [Mo8O16(OCH3)8(C2O4)] (2) in a complex redox reaction. Crystals of 2 were analyzed by single‐crystal X‐ray diffraction showing a octanuclear polyoxomolybdate dianion in which the Mo=O moieties are alternately connected through μ‐oxo and μ‐methoxo units. Charge balance in 2 is realized by a manganese(II) cation that is octahedrally coordinated by methanol ligands. The crystal structure is dominated by strong hydrogen bond interactions of the O–H···O type of methanol molecules coordinated to manganese as well as additional methanol molecules in the crystal lattice.

Synthesis and characterization of copper(I) and silver(I) complexes with heterocyclic bidentate ligands (N, X), X = S, Se

The synthesis and structural characterization of series of copper and silver homoleptic complexes [M(R-pyX)], M = Cu, Ag, X = S, Se; R = H, 3-CF 3, 5-CF 3 (not all combinations), is described. The copper compounds, as well as [Ag(pySe)] and [Ag(3-CF 3-pySe)], were synthesised by electrochemical oxidation of anodic metal in a cell containing an acetonitrile solution of the corresponding proligand. The other homoleptic silver complexes were obtained by direct reaction between AgNO 3 and the salt of the corresponding ligand in methanol. In addition, the reaction of the metal thiolate compounds with bis(diphenylphosphino)ethane (dppe) in acetone allowed the synthesis of heteroleptic compounds [M 2(R-pyX) 2(dppe) 3]. The compounds obtained have been characterized by microanalysis, IR spectroscopy and mass spectrometry and, in cases where the complexes were sufficiently soluble, by 1H NMR spectroscopy. The proligands (3-CF 3pySe) 2 ( 1), (5-CF 3-pySe) 2 ( 2) and (5-CF 3-pySe-DMF) ( 3) and the complexes [Cu(3-CF 3-pyS)] ( 4), [Ag(3-CF 3-pyS)] ( 5) and [Cu 2(5-CF 3-pyS) 2(dppe) 3] ( 6) were obtained as crystalline products and were studied by X-ray diffraction methods.

Syntheses, X-ray Structures, and Physicochemical Properties of Phenoxo-Bridged Dinuclear Nickel(II) Complexes: Kinetics of Transesterification of 2-Hydroxypropyl-p-nitrophenylphosphate

Four dinuclear nickel(II) complexes [Ni(II)(2)(L(1))(O(2)CMe)(2)(H(2)O)(2)][PF(6)].MeOH.3H(2)O (1), [Ni(II)(2)(L(1))(O(2)CMe)(2)(NCS)] (2), [Ni(II)(2)(L(2))(O(2)CMe)(2)(MeOH)(H(2)O)][ClO(4)] (3), and [Ni(II)(2)(L(2))(O(2)CMe)(2)(MeOH)(H(2)O)][BPh(4)].3MeOH.H(2)O (4) have been synthesized [HL(1): 2,6-bis[N-methyl-N-(2-pyridylethyl)amino]-4-methylphenol; HL(2): 2,6-bis[3-(pyridin-2-yl)pyrazol-1-ylmethyl]-4-methylphenol]. Complexes 1, 3, and 4 are new while complex 2 was reported previously by Fenton and co-workers (the structure of 2 was presented but no physicochemical properties of this complex were reported; in this work such studies have been completed). X-ray crystallographic analyses of 1 and 4 reveal that each nickel(II) center is six-coordinate, terminally coordinated by two nitrogen donors [(pyridin-2-yl)ethylamine unit in 1 and 3-(pyridin-2-yl)pyrazole moiety in 4], and bridged by an endogenous phenolate ion. Each of the acetate ions in 1 adopts a eta(2)-coordination mode (chelating) whereas in 4 each is coordinated in a mu-eta(1):eta(1) syn-syn bridging mode. In 1 each Ni(II) center has water coordination whereas in 4 one Ni(II) center has a methanol and the other has water coordination. The X-ray structure of 3 could not be determined. The physicochemical properties (electronic spectroscopy and cyclic voltammetry) of the cation of 3 are identical to that of 4. Magnetic susceptibility measurements have revealed the occurrence of ferromagnetic coupling of spins of the nickel(II) centers in 2 [J = +9.80 cm(-1)]. The nickel(II) centers in 1 and 3 are antiferromagnetically coupled, but to different extents [J = -48.4 cm(-1) (1); J = -1.24 cm(-1) (3)]. The magnetic properties are correlated with the nature of bridges between the nickel(II) ions. The two coordinated aqua ligands in 1 and the aqua and methanol ligands in 3 have enabled these dinuclear nickel(II) complexes to function as catalysts in the hydrolysis of 2-hydroxypropyl-p-nitrophenylphosphate (HPNP). Complex 1 is more effective in the conversion of substrate to product (p-nitrophenolate ion) than 3, under identical experimental conditions. Pseudo first-order kinetic treatment has been done for complexes 1 and 3. Temperature-dependent measurements were done to evaluate kinetic/thermodynamic parameters for the hydrolysis/transesterification reaction of HPNP and to propose a mechanistic pathway. The activation parameters are DeltaH(++) = 64 kJ mol(-1), DeltaS(++) = -104 J mol(-1) K(-1) for 1 and DeltaH(++) = 68 kJ mol(-1), DeltaS(++) = -109 J mol(-1) K(-1) for 3. A mechanism consistent with the kinetic data is presented.

Synthesis and structural characterization of novel neutral fac-M(CO) 3(NSO) complexes (M = Re, 99mTc) with N-acetylcysteine derivatives as tridentate NSO ligands

The reaction of [NEt 4] 2[Re(CO) 3Br 3] with equimolar amount of a tridentate NSO ligand in methanol leads to the formation of neutral tricarbonyl rhenium(I) complexes of the general formula Re(CO) 3(NSO), where the NSO ligand is o-C 5H 4N-CH 2CH 2-S-CH 2CH(NHCOCH 3)COOH (L 1H), complex 1 or o-C 5H 4N-CH 2CH 2-S-C(CH 3) 2CH(NHCOCH 3)COOH (L 2H), complex 2. Both complexes have been characterized by elemental analysis and spectroscopic methods, while complex 2 has also been characterized by X-rays analysis. At technetium-99m level, the corresponding fac-[ 99mTc(CO) 3(NSO)] complexes 3 and 4, were obtained in high yield by reacting ligands L 1H or L 2H with the fac-[ 99mTc(CO) 3(H 2O) 3] + precursor in water. Their structure was established by chromatographic comparison to the prototype rhenium complex using high-performance liquid chromatographic techniques.

Synthesis and Characterisation of Rare Earth Complexes Supported by para‐Substituted Cinnamate Ligands

AbstractThe preparations and characterisations of a range of lanthanoid 4‐(R)‐substituted (4‐Rcinn, R = OH, OMe, NO2, Cl), known to have good anticorrosion properties, are reported. The crystal structure of [Ce(4‐OHcinn)3(MeOH)2(H2O)]·MeOH is a polymer, in which the cerium atoms are nonacoordinate, and adjacent cerium atoms are bridged by either two bridging bidentate or two bridging tridentate carboxylate ligands. Each cerium atom also has one monodentate 4‐hydroxycinnamate ligand, one aqua ligand, and two methanol ligands.

Crystal structure of (5-bromo-2,3-diaminopyridine-N ,N'-bis(3-methoxysalicylideneiminato)- 0,0’ ά ,N')nickel(II) – methanol (1:1), Ni(C21H16BrN3O4) · CH3OH

C22H20BrN3NiO5, triclinic, P1 (no. 2), a = 7.5761(8) A, b = 12.030(1) A, c = 13.255(1) A, 0 = 105.873(2)°, . = 97.984(2)°, = 95.002(2)°, V = 1140.8 A, Z = 2, Rgt(F) = 0.040, wRref(F) = 0.108, T = 293 K. Source of material The Schiff base ligand was synthesized by condensation 5bromo-2,3-diaminopyridine and 2-hydroxy-3-methoxybenzaldehyde with the ratio 1 : 2 in ethanol. The synthesis of the title complex was carried out by reacting Ni(ClO4)2 · 6H2O and the schiff base ligand (1:1, molar ratio) in methanol. After stirring, the process was continued for about 30 min at room temperature. The mixture was filtered and the filtrate was allowed to partially evaporate in air for sevral days to produce red-brown crystals suitable for X-ray diffraction with a yield about 60 %. Discussion Schiff-bases have played an important role in the development of coordination chemistry as they readily form stable complexes withmost of the transitionmetals, inwhich some could exhibit interesting properties [1-4]. The coordination sphere for theNi(II) ion in the title crystal structure is a slightly distorted square planar, in which the four positions are occupied by twoN atoms and twoO atoms of the Schiffbase ligand. The mean deviation from the plane formed by the two N atoms, two O atoms and the Ni ion is only 0.035A, indicative of that these five atoms can form a perfect plane. The bond lengths of Ni—N are 1.874(3) A and 1.929(3) A, and Ni—O 1.861(2) A and 1.905(2) A, respectively, are consistant with the corresponding distances in 6,6'-dimethoxy-2,2'-(ethane-1,2-diyl-bis(nitrilomethylidyne)diphenolato)nickel(II) [5]. Z. Kristallogr. NCS 224 (2009) 311-312 / DOI 10.1524/ncrs.2009.0138 311 © by Oldenbourg Wissenschaftsverlag, Munchen Crystal: red-brown block, size 0.19 × 0.21 × 0.23 mm Wavelength: Mo K0 radiation (0.71073 A) &: 26.40 cm−1 Diffractometer, scan mode: Bruker APEX II CCD, +/1 2max: 50.02° N(hkl)measured, N(hkl)unique: 5614, 3964 Criterion for Iobs, N(hkl)gt: Iobs > 2 !(Iobs), 3017 N(param)refined: 293 Programs: SHELXS-97 [6], SHELXL-97 [7], XP [8] Table 1. Data collection and handling. H(5) 2i 0.3038 0.8057 0.2390 0.106 H(3) 2i 0.3084 1.2634 0.7394 0.059 H(5A) 2i 0.1176 1.5086 0.6106 0.062 H(9) 2i 0.4536 0.6113 0.5403 0.063 H(10) 2i 0.5600 0.7455 0.7080 0.067 H(11) 2i 0.5148 0.9380 0.7396 0.061 H(12) 2i 0.3823 1.0900 0.6809 0.049 H(13A) 2i 0.4226 0.5243 0.3467 0.095 H(13B) 2i 0.2396 0.4897 0.2673 0.095 H(13C) 2i 0.2443 0.4948 0.3871 0.095 H(17) 2i −0.3004 0.8838 −0.0654 0.072 H(18) 2i −0.3192 1.0831 −0.0358 0.073 H(19) 2i −0.1992 1.2121 0.1278 0.066 H(20A) 2i −0.3411 0.6953 −0.0436 0.145 H(20B) 2i −0.1850 0.6200 −0.0318 0.145 H(20C) 2i −0.1643 0.7183 −0.0878 0.145 H(21) 2i −0.0372 1.2550 0.3111 0.052 H(22A) 2i 0.2666 0.7021 0.0428 0.137 H(22B) 2i 0.1772 0.6601 0.1281 0.137 H(22C) 2i 0.3726 0.6349 0.1122 0.137 Table 2. Atomic coordinates and displacement parameters (in A). Atom Site x y z Uiso

{μ-6,6′-Dimethoxy-2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato-1κ4O6,O1,O1′,O6′:2κ4O1,N,N′,O1′}(methanol-1κO)(perchlorato-1κO)nickel(II)sodium

The mol­ecule of the title compound, [NaNi(C18H18N2O4)(ClO4)(CH3OH)], is almost planar, the maximum deviation from the molecular plane being 5.3 (1) Å. The Ni2+ ion is N2O2 coordinated by the Schiff base ligand, leading to a slightly distorted square-planar environment. The Na atom is chelated by the four O atoms of the Schiff base ligand and is coordinated by the O atoms of a methanol ligand and a perchlorate anion. The perchlorate ion is disordered over two sites with occupancies 0.723 (12):0.277 (12).

Improved Suzuki–Miyaura Reactions of Aryldiazonium Salts with Boronic Acids by Tuning Palladium on Charcoal Catalyst Properties

Abstractmagnified imageAn improved Suzuki–Miyaura cross‐coupling reaction of aryldiazonium tetrafluoroborates with boronic acids catalyzed by a highly active palladium catalyst supported on charcoal is described as an extremely practical and efficient protocol. A properties‐activity study of various catalysts clearly established that the optimal catalytic activity was obtained with palladium nanoparticles having a low oxidation degree and uniformly dispersed on the charcoal. The optimized reaction conditions allow the cross‐coupling to proceed at room temperature without any base and ligand in technical grade methanol. Although the catalyst could not be recycled, the low palladium contamination of the solvent and product after a simple filtration of the palladium on charcoal (Pd/C) renders the present protocol competitive and safer for the environment compared to more conventional homogeneous conditions. We have highlighted the efficiency of this novel protocol by a short synthesis of the fungicide Boscalid®.

Supramolecular Heteropentamers As Building Blocks for Metal Organic Materials: Synthesis and Characterization of 1D and 2D 2-Fold Interpenetrated Frameworks

Reactions between (Me4N)4[Nb6Cl12(CN)6], [Mn(ACEN)Cl] (ACEN2- = bis(acetylacetonato)ethylenediamine), and dpyo (dpyo = 4,4′-dipyridyl-N,N′-dioxide) in different ratios led to the crystallization of two cluster-based metal-organic materials (CMOMs): {[Mn(ACEN)]2[Mn(ACEN)(MeOH)]2(Nb6Cl12(CN)6)(dpyo)}·2MeCN (1) and {[Mn(ACEN)]4(Nb6Cl12(CN)6)(dpyo)2}·MeCN·2MeOH·3.5H2O (2). Their crystal structures were determined by single-crystal X-ray diffraction. Both materials are built of neutral heteropentamers {[Mn(ACEN)]4[Nb6Cl12(CN)6]} in which the edge-bridged hexacyano octahedral metal cluster [Nb6Cl12(CN)6]4- is functionalized by four [Mn(III)(ACEN)]+ complexes. The supramolecular assemblies are connected to each other by the ditopic ligand, dpyo. In 1, each heteropentamer is trans-bridged by two dpyo linkers to give a neutral chain. Hydrogen bonds between nonbridging cyanides and coordinated methanol ligands further connect the chains into layers which are separated by solvent molecules. In 2 each heteropentamer is trans-bridged by four dpyo linkers while each dpyo is cis-bridged by two heteropentamers to give a 4,4′-net with edge length of 25 Å. The 4,4′-nets are further interwoven into a 2-fold (2D → 2D) parallel interpenetrating layered structure. Magnetic properties and thermal stability of 1 and 2 are presented.

{μ-6,6′-Dimethoxy-2,2′-[propane-1,3-diylbis(nitrilomethylidyne)]diphenolato}dimethanoltrinitratonickel(II)samarium(III) methanol disolvate

In the title complex, [NiSm(C19H20N2O4)(NO3)3(CH4O)2]·2CH3OH, the NiII ion is coordinated by two O atoms and two N atoms of a deprotonated Schiff base ligand and by two O atoms of two methanol ligands in a slightly distorted octa­hedral geometry. The SmIII ion is coordinated by six O atoms from three chelating nitrate ligands and four O atoms from a Schiff base ligand in a distorted bicapped square-anti­prismatic environment. In the crystal structure, inter­molecular O—H⋯O hydrogen bonds connect complex mol­ecules and methanol solvent mol­ecules, forming (10) sheets.